<template>
    <div>
        <div class="search">
            <input type="text" placeholder="输入城市名或拼音" class="search-input" v-model="keyword">
        </div>
        <div class="search-content" ref="search" v-show="keyword">
            <ul>
                <li v-for="item of list" :key="item.id" class="borderBottom search-item" @click="handleCityClick(item.name)">{{item.name}}</li>
                <li v-show="hasNoData" class="borderBottom search-item">没有找到匹配数据</li>
            </ul>
        </div>
    </div>

</template>
<script>
import Bscroll from "better-scroll";
export default {
  name: "CitySearch",
  props: {
    cities: Object
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  computed: {
    hasNoData() {
        return !this.list.length
    }
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.search);
  },
    methods: {
    handleCityClick(city) {
       this.$store.commit("changeCity",city)
       this.$router.push("/")
    }
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      this.timer = setTimeout(() => {
        const result = [];
        if (!this.keyword) {
          this.list = [];
          return;
        }
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (
              value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1
            ) {
              result.push(value);
            }
          });
        }
        this.list = result;
      }, 100);
    }
  }
};
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.search {
    background: $bgColor;
    padding: 0 0.1rem;
    height: 0.72rem;

    .search-input {
        padding: 0 0.1rem;
        width: 100%;
        box-sizing: border-box;
        height: 0.62rem;
        line-height: 0.62rem;
        text-align: center;
        border-radius: 0.06rem;
    }
}

.search-content {
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
    background: #eee;

    .search-item {
        line-height: 0.62rem;
        padding-left: 0.2rem;
        color: #666;
        background: #fff;
    }
}
</style>
